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Pisidia Longimana (Risso, 1816), a Junior Synonym of P

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Pisidia Longimana (Risso, 1816), a Junior Synonym of P ARTICLE Pisidia longimana (Risso, 1816), a junior synonym of P. bluteli (Risso, 1816) (Crustacea: Decapoda: Anomura: Porcellanidae) and a species distinct from P. longicornis (Linnaeus, 1767) Luciane Augusto de Azevedo Ferreira¹² & Marcos Tavares¹³ ¹ Universidade de São Paulo (USP), Museu de Zoologia (MZUSP). São Paulo, SP, Brasil. ² ORCID: http://orcid.org/0000-0003-1683-9962. E-mail: [email protected] ³ ORCID: http://orcid.org/0000-0002-7186-5787. E-mail: [email protected] Abstract. Pisidia longimana (Risso, 1816) and P. bluteli (Risso, 1816), both described from Nice, France, have been considered each other’s synonyms or have been validated depending on successive taxonomic opinions. The validity of both in respect to P. longicornis (Linnaeus, 1767) has also been contradicted a number of times. The current lack of clarity in the use of the names P. longicornis, P. longimana and P. bluteli has resulted in nomenclatural instability, but also in unreliability and miscommunication as regards the available ecological and distributional information. The validity of P. bluteli and P. longimana is revisited herein based on a large number of specimens (241 males, 190 females and 33 juveniles) from many different localities. The latter species is confirmed as a junior synonym of the former, whereas P. bluteli and P. longicornis are herein considered separate species. Diagnostic characters and morphological variations are discussed and illustrated. Key-Words. Biodiversity; Eastern Atlantic; Mediterranean; Porcelain crabs. INTRODUCTION tion of the available ecological and distributional information. The worldwide genus Pisidia Leach, 1820, cur- An ongoing phylogenetic analysis of the genus rently consists of 15 species distributed across Pisidia and the examination of 241 males, 190 fe- the tropical and subtropical zones of the eastern males and 33 juveniles from many different local- Pacific, western and eastern Atlantic and Indo- ities in the collections of the National Museum of West Pacific Oceans, and Mediterranean and Black Natural History, Smithsonian Institution (USNM) Seas (Haig, 1978; Osawa & McLaughlin, 2010; and Museu de Zoologia, Universidade de São Paulo Dong & Li, 2014; WoRMS, 2020). (MZUSP), prompted us to revisit the validity of Three species are currently considered valid P. bluteli and P. longimana. The latter species is con- from the eastern Atlantic and Mediterranean and firmed as a junior synonym of the former, whereas Black Seas basins: Pisidia longicornis (Linnaeus, P. bluteli and P. longicornis are herein considered two 1767), P. bluteli (Risso, 1816) and P. longima- separate species. Diagnostic characters and mor- na (Risso, 1816) (Osawa & McLaughlin, 2010). phological variations are discussed and illustrated. However, P. longimana and P. bluteli have been lumped and split alternately with each successive taxonomic opinion, and the validity of both in MATERIAL AND METHODS respect to P. longicornis has also been contradict- ed a number of times (Zariquiey-Álvarez, 1951; Abbreviations used include: cl, carapace Holthuis, 1961; García-Raso, 1987; d’Udekem length, taken from the front to the posterior me- d’Acoz, 1995, 1999; Koukouras et al., 2002; Osawa & dian margin of the carapace; cw, carapace width, McLaughlin, 2010). Thus, the current lack of clarity taken at the level of its widest point; P1, cheliped in the use of the names P. longicornis, P. longimana (pereopod 1); P2-P4, pereopods 2 to 4; St, station. and P. bluteli has resulted in nomenclatural insta- The ecological notes and distributional rang- bility, but also in unreliability and miscommunica- es were compiled by d’Udekem d’Acoz (1999) Pap. Avulsos Zool., 2020; v.60: e20206036 ISSN On-Line: 1807-0205 http://doi.org/10.11606/1807-0205/2020.60.36 ISSN Printed: 0031-1049 http://www.revistas.usp.br/paz ISNI: 0000-0004-0384-1825 http://www.scielo.br/paz Edited by: William Ricardo Amâncio Santana Received: 23/04/2020 Accepted: 09/06/2020 Published: 16/07/2020 Pap. Avulsos Zool., 2020; v.60: e20206036 Ferreira, L.A.A. & Tavares, M.: Pisidia longimana junior synonym of P. bluteli 2/6 separately for P. bluteli and P. longimana and are herein (USNM 1277834); Pula, Pomer Bei, from Mytilus beds, combined. 18 males, 25 females (USNM 1277836). Montenegro: Bibliographic references in the synonymic list are Sveti Juan, in bryozoans, 35 to 40 m, 28 Aug. 1990, not exhaustive, being limited only to taxonomic works 1 male (USNM 1277830). Turkey: Woflzmir, 37°25 N, ′ including nomenclatural acts and taxonomical opinions. 26°40 E, 29 to 36.5 m, M.J. Sweeney coll., 19 Jun. 1973, ′ 2 males (USNM 150831). Tunisia: Tunis, La Marsa, pub- lic beach at Marsa Plage, St. 211C, from Posidonia roots, RESULTS AND DISCUSSION M.L. Jones coll., 21 Aug. 1973, 1 ovigerous female (USNM 1277827); La Marsa, public beach at Marsa Plage, Family Porcellanidae Haworth, 1825 2 m, R.B. Manning et al. coll., 29 Jul. 1972, 1 male, 1 female Genus Pisidia Leach, 1820 (USNM 265991); La Marsa, public beach at Marsa Plage, 0 to 2 m, from sabellarid colonies; R.B. Manning & R. Type species: Cancer longicornis Linnaeus, 1767 Brown coll., 10 Aug. 1972, 22 juveniles (USNM 1278013); Salammbo, Punic Port, R.B. Manning & L.B. Holthuis coll., 04 Oct. 1972, 9 males, 3 females (USNM 265992); Pisidia bluteli (Risso, 1816) Salammbo, south port along entrance channel to Punic (Figs. 1A‑O) Port, L.B. Holthuis & R.B. Manning coll., 06 Oct. 1972, 1 male (USNM 265997); Punic Port, 24 Apr. 1974, 1 fe- Porcellana bluteli Risso, 1816: 67, pl. 1, fig. 7 [type lo- male (USNM 1277832); Salammbo, flat north of and out- cality: Nice, France]; Zariquiey-Álvarez, 1951: 131, side of North Punic Port, M.L. Jones coll., 21 Aug. 1973, figs. 1, 2A-D. 2 males, 3 females (USNM 1278014); Salammbo, North Porcellana longimana Risso, 1816: 68 [type locality: Nice, Punic Port, in channel, St. 206D, algae wash, M.L. Jones France]. coll., 18 Aug. 1973, 2 males (USNM 1278016); Salammbo, Pisidia bluteli – Haig, 1960: 209; Holthuis, 1961: 37, near Port Punic, St. 207B, grass flats, algae wash, M.L. figs. 12a, d, 13a; Zariquiey-Álvarez, 1968: 290, 291, Jones coll., 19 Aug. 1973, 5 males, 2 females, 11 juve- figs. 94e, 103a, e, f; Manning & Števčić, 1982: 297; niles (USNM 1278019); Salammbo, grass flats adjacent García-Raso, 1987: 277, fig. 7; Števčić, 1990: 229; to northern Punic Port, St. 207B, algae wash, M.L. Jones Koçak et al., 2010: 340. coll., 19 Aug. 1973, 3 males, 1 intersex (USNM 1278020); Pisidia longimana – Holthuis, 1961: 40, figs. 12b, e, 13b; Raquad, off first public beach, 2 to 4 m, R.B. Manning et al. Zariquiey-Álvarez, 1968: 291, 292, fig. 103b; Manning coll., 21 Jan. 1973, 1 male (USNM 265999); Raquad, 12 km & Števčić, 1982: 297; García-Raso, 1987: 277, north of WW II Bunker at beach proper adjacent to mouth figs. 1, 3-5; Koukouras et al., 2002: 451, figs. 2b-4b; of canal extending to beach, L.B. Holthuis & R.B. Manning Koçak et al., 2010: 340. coll., 10 Oct. 1972, 1 male (USNM 265993); Korbous, Pisidia forma bluteli – d’Udekem d’Acoz, 1999: 170. isolated beach between Sidi Rais and Arn Oktor, R.B. Pisidia forma longimana – d’Udekem d’Acoz, 1999: 170. Manning et al. coll., 30 May 1973, 1 male (USNM 265998); off Cap Samart Proper, 3 to 5 m, R.B. Manning coll., Material examined: Spain: Cádiz, Bay of Cádiz, Los 14 Jan. 1973, 3 males, 3 females, 3 ovigerous females Lastres, east part of Bay of Cádiz, 29 Oct. 1974, 5 m, (USNM 265994); Sidi Bou Said, south of Yatch Basin, R.B. 1 male, 1 ovigerous female (USNM 258280); Bay of Cádiz, Manning & C. Froglia coll., 29 May 1973, 11 males, 2 fe- just northwest of harbor entrance of Cádiz, 29 Oct. 1974, males, 5 ovigerous females (USNM 265995); Sidi Bou Said, 8 to 10 m, 1 male (USNM 258282); Bay of Cádiz, east just south of Yatch Basin, R.B. Manning & L.B. Holthuis part of Bay of Cádiz near Bajo de Las Cabezuelas, sand coll., 05 Oct. 1972, 2 females (USNM 265996); Sidi Bou dune on a small cape, 30 Oct. 1974, 2.5 m, 1 male Said, in Yatch Club Harbor, R.B. Manning & C. Froglia coll., (USNM 258283). Italy: Sicily, between Mazara del Vallo 23 May 1973, 13 males, 2 females, 9 ovigerous females and Capo Guanitola, 37°34 36 N, 12°39 00 E, St. Sic 85-1, (USNM 265798); Sidi Ali El Mekki, west edge of Lac de ′ ″ ′ ″ 0.5 m, R.B. Manning & C. Froglia coll., 1985, 1 male, 1 fe- Porta Farina, behind shore about 5 km from beach (salt male (USNM 205775); Scogliere Falconara M. (Ancona), lake), St. RBM TUN-27, R. Brown et al. coll., 13 Aug. 1972, C. Froglia coll., 11 May 1973, 0.5 m, 2 males, 1 female, 2 males, 1 ovigerous female (USNM 1277844); St. 251B, 3 ovigerous females (USNM 205865); Triestre, Grado, R.B. Manning coll., 28 Oct. 1973, 4 males, 2 females 10 m, C. Froglia coll., 16 Jan. 1974, 5 males, 2 females (USNM 1278010); St. 17, R.B. Manning coll., 4 males, (USNM 152180); Golfo di Manfredonia, 41°25 18 N, 2 ovigerous females (USNM 1277838); St. 23A, R.B. ′ ″ 16°13 30 E, 15 m, C. Froglia et al. coll., 06 Jul. 1974, Manning coll., 7 males, 6 females, 2 ovigerous females ′ ″ 8 males, 11 ovigerous females, 1 intersex (USNM 152181). (USNM 1277839); St. ALG-9A, R.B. Manning coll., 09 Mar. Slovenia: Portoroz, 17 m, 11 Sep. 1970, 3 males, 2 fe- 1974, 2 males, 1 ovigerous female (USNM 1278009); males, 1 ovigerous female (USNM 1278008); Portoroz, St. 23A, R.B. Manning coll., 1 female (USNM 1278012); Obala, 26 Aug. 1971, 2 males, 1 female, 5 ovigerous fe- St.
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